The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Feb. 25, 2003
Monika Oswald, Hanau, DE;
Klaus Deller, Hainburg, DE;
Helmut Mangold, Rodenbach, DE;
Gerrit Schneider, Hanau, DE;
Rolf Clasen, Saarbruecken, DE;
Markus Hornfeck, Blieskastel, DE;
Monika Oswald, Hanau, DE;
Klaus Deller, Hainburg, DE;
Helmut Mangold, Rodenbach, DE;
Gerrit Schneider, Hanau, DE;
Rolf Clasen, Saarbruecken, DE;
Markus Hornfeck, Blieskastel, DE;
Degussa AG, Duesseldorf, DE;
Abstract
Aqueous dispersion comprising silicon/titanium mixed oxide powder with a BET surface area of 5 to 500 m/g which has been prepared by flame hydrolysis and has a titanium dioxide content of 0.5 to 20 wt. %, based on the powder, water and at least one pH-regulating substance which can be removed completely from the reaction mixture on heating, the aqueous dispersion having a solids content of between 40 and 80 wt. %. A green body produced therefrom with a green density of between 40 and 85%. A shaped glass article of optical quality with a coefficient of thermal expansion of not more than 0.5×10/K produced from the green body.